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BELA GASPAR

Overview
  • Total Patents
    172
About

BELA GASPAR has a total of 172 patent applications. Its first patent ever was published in 1929. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets optics, machines and basic materials chemistry are MARILYN LEVY, CHROMOGEN INC and ORIENTAL PHOTO IND CO LTD.

Patent filings in countries

World map showing BELA GASPARs patent filings in countries

Patent filings per year

Chart showing BELA GASPARs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Bela Gaspar 37
#2 Walter Michaelis 4
#3 Gaspar Bela 4
#4 Josef Jennen Jacob 3
#5 Paul Goldfinger 3
#6 Dreyfuss Paul 2
#7 Hella Michaelis 2
#8 Goldfinger Paul 2
#9 Michaelis Walter 2
#10 Gerdanovits Viktor Von 1

Latest patents

Publication Filing date Title
US3698902A Method of producing colloid relief images
US3598585A Azido photohardenable colloid containing an immobile dye and process of using
US3598586A Aromatic azide material and process for producing color images
GB776044A Improved polymeric sulfochlorides
GB705171A Colour photography
US2699394A Production of photographic dye images
US2544323A Cyanine dyes
US2653874A Process for the production of color photographic images
US2688542A Material and process for the production of color photographic images
GB682665A Improved photographic light-sensitive materials
US2495260A 3-arylbenzothiazolium quaternary salts and process for preparing the same
US2544322A Sensitized photographic emulsions
GB529947A Process for the manufacture of dyed gelatin layers for photographic purposes
GB529674A Process of colour photography
GB529279A Process for the production of coloured photographic pictures
US2217544A Method of treating photographic material to obtain colored pictures
GB535410A Improvements in the production of multicolour pictures
GB523507A Light-sensitive material for multicolour photography
GB523230A A process for producing multicolour films
GB523179A Photographic material for taking colour photographs